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        <title>Wiki SGY.io - web:html5</title>
        <description></description>
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       <dc:date>2026-05-12T12:14:14+00:00</dc:date>
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        <dc:format>text/html</dc:format>
        <dc:date>2025-08-16T16:30:11+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>canvas</title>
        <link>https://wiki.sgy.io/web:html5:canvas?rev=1755361811&amp;do=diff</link>
        <description>HTML5 Canvas

	*  W3Schools HTML5 Canvas

Étapes pour utiliser Canvas

	*  Définir un élément &lt;canvas&gt;.
	*  Obtenir le canvas par ID.
	*  Accéder au contexte 2d.
	*  Dessiner des formes.

Étape 1 : Définir le canvas


&lt;canvas id=&quot;canvas&quot; width=&quot;400&quot; height=&quot;200&quot;&gt;
    Canvas not supported.
&lt;/canvas&gt;</description>
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        <dc:format>text/html</dc:format>
        <dc:date>2025-08-16T16:30:11+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>file_system_api</title>
        <link>https://wiki.sgy.io/web:html5:file_system_api?rev=1755361811&amp;do=diff</link>
        <description>File System API

Features

	*  Asynchronous API
	*  Sandboxed Data

Capacity

La capacité dépend de l&#039;implémentation du navigateur, qui peut varier d&#039;un à l&#039;autre.  Par exemple, Chrome peut aller jusqu&#039;à un peu moins de 600 mo.</description>
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        <dc:format>text/html</dc:format>
        <dc:date>2025-08-16T16:30:11+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>hors_ligne</title>
        <link>https://wiki.sgy.io/web:html5:hors_ligne?rev=1755361811&amp;do=diff</link>
        <description>Applications Web Hors-ligne

Offline.js

On peut utiliser offline.js pour gérer le fait que l&#039;application n&#039;a plus de connexion.

On peut aussi utiliser offline-simulate-ui.min.js pour simuler le fait d&#039;être hors-ligne.  On a seulement besoin d&#039;ajouter ce script à la page pour qu&#039;un checkbox s&#039;affiche automatiquement.  Celui-ci sert pour activer le mode</description>
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        <dc:date>2025-08-16T16:30:11+00:00</dc:date>
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        <title>indexeddb</title>
        <link>https://wiki.sgy.io/web:html5:indexeddb?rev=1755361811&amp;do=diff</link>
        <description>IndexedDB

IndexedDB permet de stocker des données localement au niveau du client.  Ce stockage peut être utile par exemple en mode itinérance, là où l&#039;accès à un réseau n&#039;est pas toujours possible.

Caractéristiques

	*  API Asynchrone
	*</description>
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        <title>introduction</title>
        <link>https://wiki.sgy.io/web:html5:introduction?rev=1755361811&amp;do=diff</link>
        <description>HTML5 : Introduction

Structure de base


&lt;!doctype html&gt;
&lt;html&gt;
    &lt;head&gt;
       &lt;title&gt;Titre&lt;/title&gt;
    &lt;/head&gt;
    &lt;body&gt;
        I like apples and oranges.
    &lt;/body&gt;
&lt;/html&gt;


Pour le support de plus vieux navigateurs:


&lt;!doctype html&gt;

&lt;html lang=&quot;en&quot;&gt;
&lt;head&gt;
  &lt;meta charset=&quot;utf-8&quot;&gt;

  &lt;title&gt;Template HTML5&lt;/title&gt;

  &lt;link rel=&quot;stylesheet&quot; href=&quot;css/styles.css?v=1.0&quot;&gt;

  &lt;!--[if lt IE 9]&gt;
  &lt;script src=&quot;http://html5shiv.googlecode.com/svn/trunk/html5.js&quot;&gt;&lt;/script&gt;
  &lt;![endif]--&gt;
&lt;/he…</description>
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        <title>localstorage</title>
        <link>https://wiki.sgy.io/web:html5:localstorage?rev=1755361811&amp;do=diff</link>
        <description>LocalStorage</description>
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        <title>toc</title>
        <link>https://wiki.sgy.io/web:html5:toc?rev=1755361811&amp;do=diff</link>
        <description>HTML5

	*  HTML5 : Structure de base
	*  HTML5 Canvas
	*  File System API (deprecated)
	*  LocalStorage
	*  IndexedDB
	*  Applications Web Hors-ligne

Ressources

	*  HTML Reference</description>
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